Doppler Weather Radar System - Furuno Sverige AB ... Doppler Weather Radar WR-2100 and Doppler...

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Transcript of Doppler Weather Radar System - Furuno Sverige AB ... Doppler Weather Radar WR-2100 and Doppler...

  • Doppler Weather Radar System -Solution for meteorological monitoring and analysis -

    Model: WR-2100

    Compact Dual Polarimetric X-band Doppler Weather Radar

    Model: WR-50

    Compact X-band Doppler Weather Radar

    One of th e smalles

    t

    and lighte st

    www.furuno.com

  • Soaring needs for Weather Radar that stem from intensifying extreme weather

    A number of arguments on the global scale as to how to tackle problems arising from extreme weather, such as short localised rainstorms, tornados and other adverse phenomena, have been taking place recently. Subsequently, urgent needs have been recognised for the solution of localised weather forecasting as part of social infrastructure so as to protect human lives and assets from unexpected natural disasters, i.e., river floods, landslides, etc., hence delivering better safety and peace of mind to society.

    Dual Polarimetric Doppler Weather Radar to contribute to prediction of occurrence of rainstorms

    Dual Polarimetric Doppler Weather Radar simultaneously transmits and receives horizontally- and vertically-polarised radio waves. It is capable of computing the movement velocity of nimbus, as can be obtained from Single Polarimetric Doppler Weather Radar using horizontally-polarised radio waves, as well as precise precipitation intensity.

    Shape of precipitation particles is horizontally-long oval, due to the effect from atmosphere and gravity. Using these characteristics, Dual Polarimetric Doppler Weather Radar obtains diameters of precipitation particles to compute precise precipitation intensity.

    Utilising the technical expertise FURUNO has accumulated

    through the development of marine Radar that has earned

    the leading market share, FURUNO, in close collaboration

    with universities and other business organisations, is now

    working on development of solution for meteorological

    monitoring and analysis. FURUNO’s high quality compact

    X-band Doppler Weather Radar is indispensable for localised

    weather forecasting to materialise better safety in the

    society where the impact arising from the meteorological

    disasters can be diminished.

    FURUNO’s solution for meteorological monitoring and analysis

    6 mm 7 mm 8 mm

    3 mm 4 mm 5 mm

  • Classified as one of the smallest and lightest Weather Radar available in the market* FURUNO, which has earned the leading market share in marine Radar, provides Dual Polarimetric X-band

    Doppler Weather Radar WR-2100 and Doppler Weather Radar WR-50.

    With ultra high definition spatiotemporal resolution capability, the WR-2100 Dual Polarimetric Doppler

    Weather Radar grasps omni-directional precipitation intensity in 50-metre-mesh in six-second-intervals.

    By conducting high spatiotemporal resolution monitoring of the development process, three-dimensional

    structure as well as movement of a cumulonimbus, which causes precipitation, the development of short

    localised rainstorms can be predicted. Moreover, the WR-2100 has been downsized during the development

    phase to the extent that can be classified as one of the smallest and lightest Dual Polarimetric Doppler

    Weather Radar available in the market.

    Combining the two types of Weather Radar, FURUNO delivers “Multi-Radar System” capable of conducting

    real-time 3D monitoring of meteorological phenomena at a modest investment.

    * as of June 2013 (Dual Polarimetric Doppler Weather Radar)

    With ultra high definition spatiotemporal resolution capability, the WR-2100 Dual Polarimetric Doppler Weather Radar grasps omni-directional precipitation intensity in 50-metre-mesh in six-second-intervals. Also, the WR-2100 monitors the development process, three-dimensional structure as well as movement of a cumulonimbus, which causes rainstorms in order to predict their development. Moreover, the WR-2100 has been downsized during its development phase to the extent that can be classified as one of the smallest and lightest Dual Polarimetric Doppler Weather Radar available in the market.

    The WR-50 detects the nimbus and tracks its movement. Its compact unit facilitates ease of installation.

    When combined with Dual Polarimetric X-band Doppler Weather Radar, “Multi-Radar System” can be constructed at modest cost, which enables comprehensive, real-time meteorological monitoring.

    Compact Dual Polarimetric X-band Doppler Weather Radar WR-2100

    Compact X-band Doppler Weather Radar WR-50

    Model: WR-2100

    Compact Dual Polarimetric X-band

    Doppler Weather Radar

    Model: WR-50

    Compact X-band

    Doppler Weather Radar

    M

    Co

    Do

  • In order to predict the development of short localized rainstorms, following the abrupt development of a cumulonimbus, high spatiotemporal resolution monitoring of meteorological phenomena is required. By downsizing both Dual Polarimetric Doppler Weather Radar and Single Polarimetric Doppler Weather Radar, FURUNO makes remarkable reduction on the deployment cost a possibility. Also, it has become easier to create “Multi-Radar System” by combining both Radar units. High spatiotemporal resolution 3D monitoring of meteorological phenomena by “Multi-Radar System” makes possible the provision of precautious information about prospective sediment disasters as well as information about evacuation routes, shelter location, etc., in case of foreseen rainstorms in real-time.

    High precision 3D meteorological monitoring of FURUNO Multi-Radar System

    *The map data used in this page has been provided through Digital Japan Web System of Geospatial Information Authority of Japan. *The terrain elevation data of the background has been obtained from "Shuttle Radar Topography Mission (SRTM)", conducted by Jet Propulsion Laboratory, the US.

    Sample images of 3D meteorological monitoring

    Approximately 3 0km

    Image of “Multi-Radar System”

    System Configuration

    Compact Dual Polarimetric X-band Doppler Weather Radar Compact X-band Doppler Weather Radar

    Antenna Unit WR-2100-ATU

    Signal Processing Unit WR-2100-DP

    Display Unit WR-2100-DPU

    Display Unit WR-50-DPU

    Display Unit WR-50-DPU

    PC

    Radar Unit WR-50-RDU

    Radar Unit WR-50-RDU

    WR-2100 WR-50

    Internet

  • by the WR-2100

    (July 6, 2013, 19:03 to 19:05)

    CAPPI (Constant Altitude Plan Position Indicator) observation

    Data from the identical altitude is to be extracted and monitored, suitable for observing the development of a cumulonimbus. (Altitude: 1-9 km)

    On CAPPI observation, horizontal cross-section scans of a cumulonimbus are conducted at the equal altitudes. The altitude of a developed cumulonimbus top may exceed 10 km. Precipitation can be observed at higher altitude in a greatly developed cumulonimbus.

    (December 6, 2013, 10:00) Detailed nimbus movement and velocity

    Suitable for monitoring nimbus movement velocity and wind field.

    On Doppler observation, by monitoring Doppler velocity of the nimbus, moving velocity of the nimbus, namely, wind speed and direction, can be computed. In this example, warm colors indicate the winds that move away from the Radar antenna, while cold colours indicate the winds that move towards the Radar antenna. The arrow lengths and direction indicate the wind speed and direction, respectively.

    (Rainfall amount observation / June 26, 2013, 14:00 to 15:00) (Precipitation intensity observation / November 13, 2012, 17:26)

    Monitoring is to be conducted at a fixated elevation angle, suitable for rainfall amount on the ground and low-level wind shear observation.

    The antenna is rotated while fixing its elevation angle. PPI observation at low elevation angle generates rainfall amount on the ground. Also, when the rainfall amount data is accumulated for the duration of 1 hour, accumulated rainfall amount for 1 hour can be calculated. Also, by analysing the Doppler velocity obtained by PPI observation at low elevation angle, low-level wind shear can be obtained.

    *The map data used in this page has been provided through Digital Japan Web System of Geospatial Information Authority of Japan.

    by the WR-2100

    (August 6, 2013, 18:30 to 18:59)

    RHI (Range Height Indicator) observation

    Vertical cross-section scan on a cumulonimbus is conducted, suitable for observing the development of a cumulonimbus.

    On RHI observation, vertical cross-section scans of a cumulonimbus are conducted, hence easily grasping development status of a cumulonimbus. This case example clearly shows the active up-and-down movement of nimbus.

    by the WR-2100 and the WR-50

    Doppler velocity observation

    by the WR-2100 and the WR-50

    PPI (Plan Position Indicator) observation

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    SPECIFICATIONS Model Name Antenna Polarity Operating Frequency Beam Width Peak Output Power Vertical Scan Angle Antenna Rotation Speed Maximum Range Scan Modes Data Processing Unit Output Data

    Data Correction

    Communication Port Power Supply Power Consumption

    WR-2100 Dual polarimetric (Vertical and Horizontal), simultaneously transmitted/received 9 GHz band 2.7 degrees (both horizontal and vertical beams) 100 W (both horizontal and vertical beams) -2 to 90 degrees (adjustable) 16 rpm max. (adjustable) Approx. 30 km PPI, CAPPI, RHI (Sector Scan